ORTHO PEDO Sample Questions Flashcards
which of the following statements regarding crowding of the dentition is TRUE?
A. crowding of the primary dentition usually resolves as the permanent teeth erupt
B. spacing in the primary dentition usually indicates spacing will be present in the adult dentition
C. approximately 15% of adolescents have crowding severe enough to consider extraction of permanent teeth as part of treatment
D. lower incisor crowding is more common in african american individuals than white individuals
C
bones of the cranial base include which of the following? A. maxilla, mandible, and cranial vault B. ethmoid, sphenoid, and occipital C. palatal, nasal, and zygoma D. frontal and parietal
B
according to scammon’s growth curves, which of the following tissues has a growth increase that can be used to help predict timing of the adolescent growth spurt?
A. neural tissues
B. lymphoid tissues
C. reproductive tissues
C
children in the primary dentition most often present with a(n) \_\_\_ A. increased overbite B. decreased overbite C. ideal overbite D. significant open bite
B
an adult patient with a class II molar relationship and a cephalometric ANB angle of 2 degrees has which type of malocclusion? A. class II dental malocclusion B. class II skeletal malocclusion C. class I dental malocclusion D. class I dental malocclusion
A
which of the following reactions is LEAST likely to be observed during orthodontic treatment?
A. root resorption
B. devitalization of teeth that are moved
C. mobility of teeth that are moved
D. development of occlusal interferences
B
doubling the force applied at the bracket of a tooth would have what effect on the moment affecting tooth movement? A. the moment would decrease by 50% B. the moment would not change C. the moment would double D. the moment would increase fourfold
C
class II elastics are used by stretching an elastic between which of the two following points?
A. from the posterior to the anterior within the maxillary arch
B. from the posterior to the anterior within the mandibular arch
C. from the posterior of the maxillary arch to the anterior of the mandibular arch
D. from the posterior of the mandibular arch to the anterior of the maxillary arch
D
when class III elastics are used, the maxillary first molars ___
A. move distally and intrude
B. move mesially and extrude
C. move mesially and intrude
D. move mesially only; there is no movement in the vertical direction
B
what is the usual order of extraction of teeth if serial extraction is chosen as the treatment to alleviate severe crowding?
A. primary second molars, primary first molars, permanent first premolars, primary canines
B. primary canines, primary first molars, permanent first premolars
C. primary first molars, primary second molars, primary canines
D. primary canines, permanent canines, primary first molars, permanent first premolars
B
a 7-year old patient has a 4mm maxillary midline diastema. which of the following should be done?
A. brackets should be placed to close it
B. a radiograph should be taken to rule out the presence of a supernumerary tooth
C. nothing should be done. it will close on its own
D. nothing should be done. treatment should be deferred until the rest of the permanent dentition erupts
B
reduction of overbite can be accomplished MOST readily by which of the following tooth movements?
A. intruding maxillary incisors
B. uprighting maxillary and mandibular incisors
C. using a high pull headgear to the maxillary incisors
D. using a lip bumper
A
congenitally missing teeth are the result of failure in which stage of development? A. initiation B. morphodifferentiation C. apposition D. calcification
A
during an emergency dental visit in which a tooth is to be extracted because of extensive pulpal involvement, a moderately developmentally challenged 5 year old child becomes physically combative. the parents are unable to calm the child. what should the dentist do?
A. discuss the situation with the parents
B. force the nitrous oxide nosepiece over the child’s mouth and nose
C. use the hand over mouth exercise (HOME)
D. use a firm voice control
A
which of the following is the definition of conscious sedation?
A. a minimally depressed level of consciousness that retains the patient’s ability to maintain an airway independently and continuously and respond appropriately to physical stimulation or verbal command
B. a significantly depressed level of consciousness in which the patient’s ability to maintain an airway independently and continuously and respond appropriately to physical stimulation or verbal command is retained
C. a minimally depressed level of consciousness in which the patient’s ability to maintain an airway independently and continuously is retained
D. a significantly depressed level of consciousness in which the patient’s ability to maintain an airway independently and continuously is retained
A
the enamel rods in the gingival third of primary teeth sloped occlusally instead of cervically as in permanent teeth. the interproximal contacts of primary teeth are broader and flatter than the interproximal contact of permanent teeth.
A. both statements are true
B. the first statement is true, the second is false
C. the first statement is false, the second is true
D. both statements are false
A
formocresol has been shown to have a very good success rate when used as a medicament for pulpotomy procedures. why is there continued interest to find another medicament that performs as well as or better than formocresol?
A. application of formocresol is a clinically time-consuming procedure
B. formocresol is toxic, and there is the possibility of blood-borne spread to vital organs
C. it has been demonstrated that formocresol may cause spontaneous abortion
D. it has been demonstrated that formocresol may cause failure to develop adequate lung capacity in children
B
the following teeth are erupted in an 8-year old patient: 3, A, B, C, 7, 8, 9, 10, H, I, 14, 19, K, L, M, 23, 24, 25, 26, R, S, T, 30 what is the space maintenance of choice? A. band and loop space maintainer B. lower lingual holding arch C. nance holding arch D. distal shoe space maintainer
A
the mother of a 5-year old patient is concerned about the child’s thumb-sucking habit. on examination 6 months ago, the patient had a 5mm overjet and a 3mm anterior open bite. today, the patient has a 10% overbite and a 3.5mm overjet. the mother says that the child only sucks his thumb every night when falling to sleep. which of the following is the best advice?
A. refer to a speech pathologist
B. recommend tongue thrust therapy
C. recommend a thumb sucking appliance
D. counsel the parent regarding the thumb sucking, and recall the patient in 3 months
D
which of the following statements regarding orthodontic closure of a midline diastema in a patient with a heavy maxillary frenum is TRUE?
A. orthodontic closure is accomplished before frenum surgery
B. orthodontic closure is accomplished after frenum surgery
C. after orthodontic closure, frenum surgery is typically not indicated
D. after frenum surgery, orthodontic closure is typically not indicated
A
in a 4-year old patient, tooth E was traumatically intruded, and approximately 50% of the crown is visible clinically. what is the treatment of choice?
A. reposition and splint
B. reposition, splint, and primary endodontics
C. reposition, splint, and formocresol pulpotomy
D. none of the above
D
in a 4-year old patient, the maxillary right primary central incisor was traumatically avulsed 60 minutes ago. what is the treatment of choice?
A. replant, splint, and primary endodontics
B. replant, splint, and formocresol pulpotomy
C. replant, no splint, and primary endodontics
D. none of the above
D
a young permanent incisor with an open apex has a pinpoint exposure as a result of a traumatic injury that occurred 24 hours previously. which of the following is the BEST treatment?
A. place calcium hydroxide on the pinpoint exposure
B. open the pulp chamber to find healthy pulp tissue and perform a pulpotomy
C. initiate a calcium hydroxide pulpectomy
D. initiate conventional root canal treatment with gutta percha
B
a permanent incisor with an open apex is extruded 4mm following an injury 15 minutes ago. what is the treatment of choice?
A. no immediate treatment; monitor closely for vitality
B. reposition, splint, and monitor closely for vitality
C. reposition, splint, and initiate calcium hydroxide pulpotomy
D. reposition, splint, and initiate calcium hydroxide pulpectomy
B
